. 2021 Oct 7;9(10):e32544. doi: 10.2196/32544
©Liuhong Zhao, Jingfen Chen, Liuying Lan, Ni Deng, Yan Liao, Liqun Yue, Innie Chen, Shi Wu Wen, Ri-hua Xie. Originally published in JMIR mHealth and uHealth (https://mhealth.jmir.org), 07.10.2021.
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Figure 1.
Flow diagram of study selection.